Omnibus

Instrument

Octave

C4–C6

Labels

Volume

Play with your mouse, touch, or computer keyboard. Shift octave with − and =.

  • 100% Free
  • No Sign-Up
  • No Credit Card
  • No Free Trial
  • No Pro Tier
  • No Watermarks

Nothing is uploaded. Just open it and start.

Free online musical instruments

Play a piano and a drum kit right in your browser — with your mouse, a touchscreen, or your computer keyboard. Switch between eight instrument voices, hold chords, shift octaves, and lay down a beat on the pads. Every sound is generated live with the Web Audio API, so there is nothing to install and nothing to download. No sign-up, nothing uploaded.

Eight keyboard voices

Grand and electric piano, organ, synth, strings, music box, marimba, and bass.

Drum pad

Kick, snare, hi-hats, clap, tom, and crash — punchy hits synthesized on the fly.

Mouse, touch & keys

Play by clicking, tapping, or typing, with full polyphony for chords.

Private & client-side

No account, no upload, no samples to download — it all runs in your browser.

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Metronome

A steady, accurate metronome from 20–400 BPM with time signatures, subdivisions, and tap tempo.

Instrument Tuner

A chromatic tuner that listens through your mic and shows the note and cents sharp or flat.

Timer & Stopwatch

A countdown timer with alarm, plus a stopwatch, alarm clock, and pomodoro timer — all in one.

Frequently asked questions

How do I play the instruments?
Click or tap the on-screen piano keys and drum pads, or use your computer keyboard. In keyboard mode the bottom letter row (Z, X, C…) plays the lower octave and the QWERTY row plays the octave above, with the black keys on the rows just above each. In drum mode the A, S, D, F, G, H and J keys trigger the pads.
Are the sounds real recordings?
No — every sound is synthesized live in your browser with the Web Audio API from oscillators and noise. That keeps the tool tiny and instant with nothing to download, which is why the synth voices (organ, electric piano, bells, marimba, bass) and the drums sound great, while an acoustic grand piano is an approximation rather than a sampled recording.
Why do I have to click before I hear anything?
Browsers only allow audio to start after you interact with the page, so sound begins the first time you press a key, tap a pad, or click. This is a built-in browser rule, not a limitation of the tool.
Can I play chords and more than one note at once?
Yes. The keyboard is fully polyphonic. A mouse can only press one key at a time, but holding several computer keys together plays a chord, and on a touchscreen you can press several keys or pads at once with multiple fingers.
What are the octave and label controls for?
The octave buttons (or the − and = keys) move the whole keyboard up or down so you can reach higher or lower notes than the two octaves shown. The label switch shows either the computer key for each note, the note name, or nothing.
Is it free and private?
Completely. Every instrument runs entirely in your browser with no sign-up, and your chosen voice and settings are saved only on your device. Nothing is uploaded.

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